20138946890

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{273367}}^1$

素因数の和:273566

約数の個数: 32

約数和(自身を含む): 37199917440

約数和(自身を除く): 17060970550

約数列:

[1, 2, 5, 10, 53, 106, 139, 265, 278, 530, 695, 1390, 7367, 14734, 36835, 73670, 273367, 546734, 1366835, 2733670, 14488451, 28976902, 37998013, 72442255, 75996026, 144884510, 189990065, 379980130, 2013894689, 4027789378, 10069473445, 20138946890]

約数ペア:

[(1, 20138946890), (2, 10069473445), (5, 4027789378), (10, 2013894689), (53, 379980130), (106, 189990065), (139, 144884510), (265, 75996026), (278, 72442255), (530, 37998013), (695, 28976902), (1390, 14488451), (7367, 2733670), (14734, 1366835), (36835, 546734), (73670, 273367)]